| intCompanyID | Company Name | Phone | Fax | Certification Status |
| 6656 | DTG Enterprises, Inc. | (425) 549-3000 | | Active |
| 105 | Hemley's Septic Tank Cleaning Inc.* | (253) 851-3432 | (253) 851-2749 | Active |
| 685 | L&L SEPTIC TANK PUMPING | (360) 779-6000 | | Active |
| 737 | Moran's Portable Restrooms, LLC | (360) 994-9544 | | Active |
| 447 | Skookum Contract Services | (253) 912-2015 | | Active |
|